Table 5.

Total body mineral density (g/cm²) of Non-Hispanic White males aged 8 years and over.

Male (Non-Hispanic White)	Sample size	Mean	Standard deviation	Does Tukey-Kramer C. I. include zero?
(X1) 8–11 years	369	0.839	0.069	(X4–X1)	×
(X2) 12–15 years	578	0.995	0.111	(X4–X2)	×
(X3) 16–19 years	591	1.171	0.107	(X4-X3)	×
(X4) 20–29 years	617	1.210	0.099	(X4)	✓
(X5) 30–39 years	647	1.213	0.106	(X4-X5)	✓
(X6) 40–49 years	700	1.206	0.102	(X4–X6)	✓
(X7) 50–59 years	683	1.181	0.110	(X4–X7)	×
(X8) 60–69 years	623	1.167	0.114	(X4–X8)	×
(X9) 70–79 years	496	1.135	0.114	(X4–X9)	×
(X10) 80 years and over	398	1.107	0.115	(X4–X10)	×